diff options
| author |   Graf Yang <graf.yang@analog.com> | 2010-02-01 06:07:50 +0000 |
|---|---|---|
| committer |   Mike Frysinger <vapier@gentoo.org> | 2010-03-09 00:30:50 -0500 |
| commit | 718340f62900ed44046d2b0f74d0dec7cf844194 (patch) | |
| tree | 974cf52038196598c653902de3da83ca96ee3792 /arch/blackfin/include/asm/smp.h | |
| parent | Blackfin: add support for cpufreq on SMP systems (diff) | |
| download | linux-dev-718340f62900ed44046d2b0f74d0dec7cf844194.tar.xz linux-dev-718340f62900ed44046d2b0f74d0dec7cf844194.zip | |
Blackfin: rewrite resync_core_{i,d}cache() SMP logic to avoid per_cpu data
This functions are implicitly called by core functions like cpu_relax(),
and since those functions may be called early on before common code has
initialized the per-cpu data area, we need to tweak the stats gathering.
Now the statistics are maintained in common bss which makes these funcs
safe to use as soon as the C runtime env is setup.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/include/asm/smp.h')
| -rw-r--r-- | arch/blackfin/include/asm/smp.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/smp.h b/arch/blackfin/include/asm/smp.h index 7f26de09ca9c..f5b537967116 100644 --- a/arch/blackfin/include/asm/smp.h +++ b/arch/blackfin/include/asm/smp.h @@ -24,6 +24,13 @@ struct corelock_slot { }; extern struct corelock_slot corelock; +#ifdef __ARCH_SYNC_CORE_ICACHE +extern unsigned long icache_invld_count[NR_CPUS]; +#endif +#ifdef __ARCH_SYNC_CORE_DCACHE +extern unsigned long dcache_invld_count[NR_CPUS]; +#endif + void smp_icache_flush_range_others(unsigned long start, unsigned long end); #ifdef CONFIG_HOTPLUG_CPU |